Question

select the correct answer.
what could be a result of an injury to the dorsal column?
a. loss of sensation to pressure and touch
b. loss of control over all involuntary movements
c. inability of the body to maintain homeostasis
d. inability to regulate the sleep-wake cycle
e. loss of motor control

Explanation:

The dorsal column is mainly responsible for transmitting sensory information related to fine touch, pressure, vibration, and proprioception. An injury to it would likely lead to a loss of sensation in these modalities. Options B (loss of control over all involuntary movements) is more related to other neural structures like the autonomic nervous system. Option C (inability of the body to maintain homeostasis) is a broader function involving multiple systems. Option D (inability to regulate the sleep - wake cycle) is related to structures like the hypothalamus. Option E (loss of motor control) is related to motor pathways like the corticospinal tract.

Answer:

A. loss of sensation to pressure and touch